Method and apparatus for dynamic provisioning of reliable connections in the presence of multiple failures
US7460783B2 · kind B2 · utility
9Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2003 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Oct 14, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0284
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for dynamic provisioning of reliable connections in the presence of multiple failures in optical networks are described. One embodiment is a method for allocation of protection paths after a failure in an optical network. The method comprises, responsive to a failure in an active lightpath, switching traffic on the active lightpath to a protection path; subsequent to the switching, identifying all active lightpaths in the network that no longer have an available protection path; and attempting to allocate a protection path to each of the identified active lightpaths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.